// 字体样式定义
.font-primary {
  font-family: 'Inter', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

.font-secondary {
  font-family: 'Poppins', 'Inter', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

// 标题字体样式
.heading-1 {
  font-family: 'Poppins', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.heading-2 {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.heading-3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}

.heading-4 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
}

.heading-5 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
}

.heading-6 {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

// 正文字体样式
.body-large {
  font-family: 'Inter', sans-serif;
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.6;
}

.body-medium {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
}

.body-small {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
}

// 特殊字体样式
.text-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-shadow {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

// 字重类
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

// 字间距类
.tracking-tight { letter-spacing: -0.025em; }
.tracking-normal { letter-spacing: 0; }
.tracking-wide { letter-spacing: 0.025em; }